service indicator GMC ACADIA 2021 Owner's Guide

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-14608671) - 2021 - CRC - 10/26/20
352 Service and Maintenance
.Trained dealer technicians have the
diagnostic equipment to test the battery
and ensure that the connections and
cables are corrosion-free.
Belts
.Belts may need replacing if they squeak
or show signs of cracking or splitting.
.Trained dealer technicians have access to
tools and equipment to inspect the belts
and recommend adjustment or
replacement when necessary.
Brakes
Brakes stop the vehicle and are crucial to
safe driving.
.Signs of brake wear may include chirping,
grinding, or squealing noises, or difficulty
stopping.
.Trained dealer technicians have access to
tools and equipment to inspect the brakes
and recommend quality parts engineered
for the vehicle.
Fluids
Proper fluid levels and approved fluids
protect the vehicle’s systems and
components. See Recommended Fluids and
Lubricants 0354 for GM approved fluids.
.Engine oil and windshield washer fluid
levels should be checked at every fuel fill.
.Instrument cluster lights may come on to
indicate that fluids may be low and need
to be filled.
Hoses
Hoses transport fluids and should be
regularly inspected to ensure that there are
no cracks or leaks. With a multi-point
inspection, your dealer can inspect the hoses
and advise if replacement is needed.
Lamps
Properly working headlamps, taillamps, and
brake lamps are important to see and be
seen on the road.
.Signs that the headlamps need attention
include dimming, failure to light, cracking,
or damage. The brake lamps need to be
checked periodically to ensure that they
light when braking.
.With a multi-point inspection, your dealer
can check the lamps and note any
concerns.
Shocks and Struts
Shocks and struts help aid in control for a
smoother ride.
.Signs of wear may include steering wheel
vibration, bounce/sway while braking,
longer stopping distance, or uneven
tire wear.
.As part of the multi-point inspection,
trained dealer technicians can visually
inspect the shocks and struts for signs of
leaking, blown seals, or damage, and can
advise when service is needed.
Tires
Tires need to be properly inflated, rotated,
and balanced. Maintaining the tires can save
money and fuel, and can reduce the risk of
tire failure.
.Signs that the tires need to be replaced
include three or more visible treadwear
indicators; cord or fabric showing through
the rubber; cracks or cuts in the tread or
sidewall; or a bulge or split in the tire.
.Trained dealer technicians can inspect and
recommend the right tires. Your dealer
can also provide tire/wheel balancing
services to ensure smooth vehicle
operation at all speeds. Your dealer sells
and services name brand tires.

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/-
Mexico-14608671) - 2021 - CRC - 10/26/20
Index 387
Fuel (cont'd)Filling the Tank . . . . . . . . . . . . . . . . . . . . . . . . 254
Foreign Countries . . . . . . . . . . . . . . . . . . . . . . 254
Gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
Low Fuel Warning Light . . . . . . . . . . . . . . . . 114
Management, Active . . . . . . . . . . . . . . . . . . . 219
Prohibited Fuels . . . . . . . . . . . . . . . . . . . . . . . 254
Recommended . . . . . . . . . . . . . . . . . . . . . . . . . 253
Top Tier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 253
Fuses Engine Compartment Fuse Block . . . . . . . 293
Fuses and Circuit Breakers . . . . . . . . . . . . . 293
Instrument Panel Fuse Block . . . . . . . . . . . 296
Rear Compartment Fuse Block . . . . . . . . . 298
G
Garage Door Opener . . . . . . . . . . . . . . . . . . . . . . 127Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . 127
Gas Strut(s) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 291
Gauges Engine Coolant Temperature . . . . . . . . . . . 104
Engine Oil Temperature . . . . . . . . . . . . . . . . 103
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
Odometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
Speedometer . . . . . . . . . . . . . . . . . . . . . . . . . . 102
Tachometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
Trip Odometer . . . . . . . . . . . . . . . . . . . . . . . . . 102
Voltmeter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104 Gauges (cont'd)
Warning Lights and Indicators . . . . . . . . . . 96
Gear Shifting Light . . . . . . . . . . . . . . . . . . . . . . . .110
General Information Service and Maintenance . . . . . . . . . . . . . . 345
Towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 256
Vehicle Care . . . . . . . . . . . . . . . . . . . . . . . . . . . 268
Global Positioning System (GPS) . . . . . . . . . . 161
Glove Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
GM Mobility Reimbursement Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 366
Guidance
Problems with the Route . . . . . . . . . . . . . . 162
H
Halogen Bulbs . . . . . . . . . . . . . . . . . . . . . . . . . . . 292
Hazard Warning Flashers . . . . . . . . . . . . . . . . .134
HD Radio Technology . . . . . . . . . . . . . . . . . . . . .145
Head Restraints . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
Head-up Display . . . . . . . . . . . . . . . . . . . . . . . . . . 119
HeadlampsAiming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 292
Automatic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133
Bulb Replacement . . . . . . . . . . . . . . . . . . . . . . 292
Daytime Running Lamps (DRL) . . . . . . . . . 133
Flash-to-Pass . . . . . . . . . . . . . . . . . . . . . . . . . . . 132
High-Beam On Light . . . . . . . . . . . . . . . . . . . . 114
High/Low Beam Changer . . . . . . . . . . . . . . 132 Headlamps (cont'd)
Lamps On Reminder . . . . . . . . . . . . . . . . . . . . 114
Heated Rear Seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Steering Wheel . . . . . . . . . . . . . . . . . . . . . . . . . 90
Heated and Ventilated Front Seats . . . . . . . .41
Heated Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Heater Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 216
Heating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .192, 196
High-Beam On Light . . . . . . . . . . . . . . . . . . . . . . 114
High-Speed Operation . . . . . . . . . . . . . . . . . . . 308
Hill and Mountain Roads . . . . . . . . . . . . . . . . 207
Hill Descent Control (HDC) . . . . . . . . . . . . . . . 228
Hill Descent Control Light . . . . . . . . . . . . . . . . .110
Hill Start Assist (HSA) . . . . . . . . . . . . . . . . . . . . 226
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 270
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .91
How to Wear Seat Belts Properly . . . . . . . . . 48
HVAC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .192, 196
I
If the System Needs Service . . . . . . . . . . . . . 162
Ignition Positions . . . . . . . . . . . . . . . . . . . . . . . . . 213
Immobilizer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Indicator Pedestrian Ahead . . . . . . . . . . . . . . . . . . . . . . . 111
Vehicle Ahead . . . . . . . . . . . . . . . . . . . . . . . . . . 111

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/-
Mexico-14608671) - 2021 - CRC - 10/26/20
388 Index
Infants and Young Children, Restraints . . . . 66
InformationPublication Ordering . . . . . . . . . . . . . . . . . . . . 371
Infotainment System . . . . . . . . . . . . . . . . . . . . 374
Instrument Cluster . . . . . . . . . . . . . . . . . . . 97, 100
Instrument Panel Overview . . . . . . . . . . . . . . . . 4
Interior Rearview Mirrors . . . . . . . . . . . . . . . . . 28
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . 1, 138
J
Jump Starting - North America . . . . . . . . . . . 332
K
Keyless Entry Remote (RKE) System . . . . . . . . . . . . . . . . . . . . 7
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
L
Labeling, Tire Sidewall . . . . . . . . . . . . . . . . . . . 302
Lamps Courtesy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135
Daytime Running (DRL) . . . . . . . . . . . . . . . . 133
Dome . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135
Exterior Controls . . . . . . . . . . . . . . . . . . . . . . . . 131
Exterior Lamps Off Reminder . . . . . . . . . . 132
Exterior Lighting Battery Saver . . . . . . . . . 137
Malfunction Indicator (CheckEngine) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
On Reminder . . . . . . . . . . . . . . . . . . . . . . . . . . . 114 Lamps (cont'd)
Reading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135
Lane Change Alert (LCA) . . . . . . . . . . . . . . . . . 250
Lane Keep Assist (LKA) . . . . . . . . . . . . . . . . . . . 252
Lane Keep Assist Light . . . . . . . . . . . . . . . . . . . .110
Lap-Shoulder Belt . . . . . . . . . . . . . . . . . . . . . . . . . 50
LATCH System Replacing Parts after a Crash . . . . . . . . . . . 78
LATCH, Lower Anchors and Tethers for Children . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
LED Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 292
Liftgate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Lighting Entry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136
Exit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136
Illumination Control . . . . . . . . . . . . . . . . . . . 135
LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 292
Lights Airbag Readiness . . . . . . . . . . . . . . . . . . . . . . 105
Antilock Brake System (ABS)Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
Brake System Warning . . . . . . . . . . . . . . . . 108
Charging System . . . . . . . . . . . . . . . . . . . . . . 107
Check Engine (Malfunction Indicator) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
Cruise Control . . . . . . . . . . . . . . . . . . . . . . . . . . 115
Door Ajar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115
Electric Parking Brake . . . . . . . . . . . . . . . . . . 109 Lights (cont'd)
Engine Coolant Temperature
Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
Engine Oil Pressure . . . . . . . . . . . . . . . . . . . . . 113
Flash-to-Pass . . . . . . . . . . . . . . . . . . . . . . . . . . . 132
Front Fog Lamp . . . . . . . . . . . . . . . . . . . . . . . . . 114
Gear Shifting . . . . . . . . . . . . . . . . . . . . . . . . . . 110
High-Beam On . . . . . . . . . . . . . . . . . . . . . . . . . . 114
High/Low Beam Changer . . . . . . . . . . . . . . 132
Hill Descent Control . . . . . . . . . . . . . . . . . . . 110
Lane Keep Assist . . . . . . . . . . . . . . . . . . . . . . . 110
Low Fuel Warning . . . . . . . . . . . . . . . . . . . . . . 114
Seat Belt Reminders . . . . . . . . . . . . . . . . . . . 105
Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
Service Electric Parking Brake . . . . . . . . . . 109
StabiliTrak OFF . . . . . . . . . . . . . . . . . . . . . . . . . . 112
Tire Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
Tow/Haul Mode . . . . . . . . . . . . . . . . . . . . . . . 110
Traction Control System (TCS)/StabiliTrak . . . . . . . . . . . . . . . . . . . . . . 112
Traction Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
Locks Automatic Door . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Delayed Locking . . . . . . . . . . . . . . . . . . . . . . . . . 17
Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Lockout Protection . . . . . . . . . . . . . . . . . . . . . . . 17
Power Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/-
Mexico-14608671) - 2021 - CRC - 10/26/20
Index 389
Loss of Control . . . . . . . . . . . . . . . . . . . . . . . . . . 203
Low Fuel Warning Light . . . . . . . . . . . . . . . . . . 114
Lower Anchors and Tethers forChildren (LATCH System) . . . . . . . . . . . . . . . . . 71
Lumbar Adjustment . . . . . . . . . . . . . . . . . . . . . . . 38 Front Seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
M
MaintenanceRecords . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 357
Maintenance and Care Additional . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 351
Maintenance Schedule . . . . . . . . . . . . . . . . . . . 346 Recommended Fluids andLubricants . . . . . . . . . . . . . . . . . . . . . . . . . . . . 354
Malfunction Indicator Lamp . . . . . . . . . . . . . . 107
Manual Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . 223
Map Data Updates . . . . . . . . . . . . . . . . . . . . . . . 162
Maps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155
Media Avoiding Untrusted Devices . . . . . . . . . . . . 147
Memory Seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Messages Engine Power . . . . . . . . . . . . . . . . . . . . . . . . . . 123
Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122
Vehicle Speed . . . . . . . . . . . . . . . . . . . . . . . . . . 123 Mirror
Rear Camera . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Mirrors Automatic Dimming . . . . . . . . . . . . . . . . . . . . 28
Automatic Dimming Rearview . . . . . . . . . . 28
Convex . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Folding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Heated . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Manual Rearview . . . . . . . . . . . . . . . . . . . . . . . 28
Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Tilt in Reverse . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Mirrors, Interior Rearview . . . . . . . . . . . . . . . . . 28
Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 228 Driver Control . . . . . . . . . . . . . . . . . . . . . . . . . 228
Monitor System, Tire Pressure . . . . . . . . . . . 309
Multi-band Antenna . . . . . . . . . . . . . . . . . . . . . .147
N
Navigation Connected Services . . . . . . . . . . . . . . . . . . . . 380
Destination . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156
Using the System . . . . . . . . . . . . . . . . . . . . . . 152
Navigation Symbols . . . . . . . . . . . . . . . . . . . . . . 155
New Vehicle Break-In . . . . . . . . . . . . . . . . . . . . . 212
O
Odometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102 Trip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
Off-Road . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 203 Driving . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 203
Recovery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 203
Oil Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 276
Engine Oil Life System . . . . . . . . . . . . . . . . . 278
Pressure Light . . . . . . . . . . . . . . . . . . . . . . . . . . 113
Older Children, Restraints . . . . . . . . . . . . . . . . . 64
Online Owner Center . . . . . . . . . . . . . . . . . . . . 365
OnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 374
OnStar Additional Information . . . . . . . . . . . 376
OnStar Emergency . . . . . . . . . . . . . . . . . . . . . . . 376
OnStar Overview . . . . . . . . . . . . . . . . . . . . . . . . . 375
OnStar Security . . . . . . . . . . . . . . . . . . . . . . . . . . 376
OnStar System . . . . . . . . . . . . . . . . . . . . . . . . . . . 151
Operation Fog Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134
Outlets Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
Overheating, Engine . . . . . . . . . . . . . . . . . . . . . 285
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139 Instrument Panel . . . . . . . . . . . . . . . . . . . . . . . . 4